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St. Louis Lambert International Airport to Denver International Airport flight

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to Denver International Airport over the next 90 days, with one-way fares from NZD 77 and round-trip from NZD 157. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Sat, Dec 5 | Frontier Airlines
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sat, Dec 12 | Frontier Airlines
      NZD 157 NZD 362
      56% off
      56% off
      NZD 362 NZD 157
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sat, Dec 12 | Frontier Airlines
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Tue, Dec 15 | Frontier Airlines
      NZD 161 NZD 362
      56% off
      56% off
      NZD 362 NZD 161
    • STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Sun, Nov 8 | Frontier Airlines
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Tue, Nov 10 | Frontier Airlines
      NZD 290 NZD 362
      20% off
      20% off
      NZD 362 NZD 290
    • STL 9:09 AM
      7h 39m
      1 stop
      DEN 3:48 PM
      St. Louis - Denver | Wed, Nov 25 | Frontier Airlines
      DEN 7:55 AM
      2h 8m
      Nonstop
      STL 11:03 AM
      Denver - St. Louis | Sat, Nov 28 | Frontier Airlines
      NZD 211
      42% off
      NZD 362 NZD 211
    • STL 7:08 AM
      5h 55m
      1 stop
      DEN 12:03 PM
      St. Louis - Denver | Sat, Nov 28 | Delta Air Lines
      DEN 7:49 AM
      2h 8m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      NZD 241
      33% off
      NZD 362 NZD 241
    • STL 6:03 AM
      7h 17m
      1 stop
      DEN 12:20 PM
      St. Louis - Denver | Sat, Dec 12 | Delta Air Lines
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Tue, Dec 15 | Frontier Airlines
      NZD 250
      31% off
      NZD 362 NZD 250
    • STL 7:16 PM
      5h 34m
      1 stop
      DEN 11:50 PM
      St. Louis - Denver | Sat, Dec 5 | American Airlines
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sat, Dec 12 | Frontier Airlines
      NZD 258
      28% off
      NZD 362 NZD 258
    • STL 8:12 PM
      5h 19m
      1 stop
      DEN 12:31 AM
      St. Louis - Denver | Wed, Nov 25 | American Airlines
      DEN 7:55 AM
      2h 8m
      Nonstop
      STL 11:03 AM
      Denver - St. Louis | Sat, Nov 28 | Frontier Airlines
      NZD 299
      17% off
      NZD 362 NZD 299
    • STL 5:37 PM
      22h 7m
      1 stop
      DEN 2:44 PM
      St. Louis - Denver | Fri, Dec 25 | Frontier Airlines
      DEN 10:29 AM
      13h 12m
      1 stop
      STL 12:41 AM
      Denver - St. Louis | Fri, Jan 1 | Frontier Airlines
      NZD 299
      17% off
      NZD 362 NZD 299
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
      DEN 3:00 PM
      6h
      Nonstop
      STL 4:00 PM
      Denver - St. Louis | Wed, Nov 11 | Normal Airline
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    • Cheapest
      STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sun, Dec 20 | Frontier Airlines
      NZD 77 NZD 145
      47% off
      47% off
      NZD 145 NZD 77
    • Cheapest
      STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sat, Dec 19 | Frontier Airlines
      NZD 77 NZD 94
      18% off
      18% off
      NZD 94 NZD 77
    • STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Thu, Dec 3 | Frontier Airlines
      NZD 79 NZD 145
      46% off
      46% off
      NZD 145 NZD 79
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sun, Dec 6 | Frontier Airlines
      NZD 79
      46% off
      NZD 145 NZD 79
    • STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Wed, Dec 2 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sat, Dec 5 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:02 PM
      2h 31m
      Nonstop
      DEN 8:33 PM
      St. Louis - Denver | Fri, Jan 29 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Sat, Jan 2 | Frontier Airlines
      NZD 80
      45% off
      NZD 145 NZD 80
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Tue, Dec 22 | Frontier Airlines
      NZD 80
      45% off
      NZD 145 NZD 80
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
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    • Cheapest nonstop
      STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sun, Dec 20 | Frontier Airlines
      NZD 77 NZD 145
      47% off
      47% off
      NZD 145 NZD 77
    • STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sat, Dec 19 | Frontier Airlines
      NZD 77 NZD 94
      18% off
      18% off
      NZD 94 NZD 77
    • STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Thu, Dec 3 | Frontier Airlines
      NZD 79 NZD 145
      46% off
      46% off
      NZD 145 NZD 79
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sun, Dec 6 | Frontier Airlines
      NZD 79
      46% off
      NZD 145 NZD 79
    • STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Wed, Dec 2 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sat, Dec 5 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:02 PM
      2h 31m
      Nonstop
      DEN 8:33 PM
      St. Louis - Denver | Fri, Jan 29 | Frontier Airlines
      NZD 79
      16% off
      NZD 94 NZD 79
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Sat, Jan 2 | Frontier Airlines
      NZD 80
      45% off
      NZD 145 NZD 80
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Tue, Dec 22 | Frontier Airlines
      NZD 80
      45% off
      NZD 145 NZD 80
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
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    • Cheapest nonstop
      STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sat, Dec 19 | Frontier Airlines
      NZD 77 NZD 595
      87% off
      87% off
      NZD 595 NZD 77
    • STL 7:02 PM
      2h 31m
      Nonstop
      DEN 8:33 PM
      St. Louis - Denver | Fri, Jan 29 | Frontier Airlines
      NZD 79 NZD 595
      87% off
      87% off
      NZD 595 NZD 79
    • STL 7:58 PM
      2h 31m
      Nonstop
      DEN 9:29 PM
      St. Louis - Denver | Wed, Dec 2 | Frontier Airlines
      NZD 79 NZD 595
      87% off
      87% off
      NZD 595 NZD 79
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sat, Dec 5 | Frontier Airlines
      NZD 79
      87% off
      NZD 595 NZD 79
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Mon, Jan 4 | Frontier Airlines
      NZD 80
      87% off
      NZD 595 NZD 80
    • STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Fri, Jan 1 | Frontier Airlines
      NZD 80
      87% off
      NZD 595 NZD 80
    • STL 7:02 PM
      2h 31m
      Nonstop
      DEN 8:33 PM
      St. Louis - Denver | Wed, Jan 6 | Frontier Airlines
      NZD 80
      87% off
      NZD 595 NZD 80
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Wed, Dec 16 | Frontier Airlines
      NZD 81
      86% off
      NZD 595 NZD 81
    • STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sat, Dec 12 | Frontier Airlines
      NZD 81
      86% off
      NZD 595 NZD 81
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
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    • Cheapest nonstop
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Mon, Nov 9 | Frontier Airlines
      NZD 446 NZD 1,470
      70% off
      70% off
      NZD 1,470 NZD 446
    • STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Fri, Nov 13 | Frontier Airlines
      NZD 463 NZD 1,470
      69% off
      69% off
      NZD 1,470 NZD 463
    • STL 4:39 PM
      2h 31m
      Nonstop
      DEN 6:10 PM
      St. Louis - Denver | Sun, Nov 8 | United Airlines
      NZD 1,308 NZD 1,470
      11% off
      11% off
      NZD 1,470 NZD 1,308
    • STL 7:26 AM
      5h 13m
      1 stop
      DEN 11:39 AM
      St. Louis - Denver | Mon, Nov 9 | American Airlines
      NZD 682
      54% off
      NZD 1,470 NZD 682
    • STL 6:13 AM
      4h 45m
      1 stop
      DEN 9:58 AM
      St. Louis - Denver | Mon, Nov 9 | Delta Air Lines
      NZD 686
      53% off
      NZD 1,470 NZD 686
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
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    • STL 1:45 PM
      2h 29m
      Nonstop
      DEN 3:14 PM
      St. Louis - Denver | Mon, Nov 23 | United Airlines
      NZD 246 NZD 1,047
      77% off
      77% off
      NZD 1,047 NZD 246
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Fri, Nov 27 | United Airlines
      NZD 466 NZD 1,047
      55% off
      55% off
      NZD 1,047 NZD 466
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Fri, Nov 20 | United Airlines
      NZD 533 NZD 1,047
      49% off
      49% off
      NZD 1,047 NZD 533
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Mon, Nov 30 | United Airlines
      NZD 534
      49% off
      NZD 1,047 NZD 534
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Wed, Nov 25 | United Airlines
      NZD 546
      48% off
      NZD 1,047 NZD 546
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Mon, Nov 9 | United Airlines
      NZD 666
      36% off
      NZD 1,047 NZD 666
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Fri, Nov 13 | United Airlines
      NZD 673
      36% off
      NZD 1,047 NZD 673
    • STL 1:40 PM
      2h 29m
      Nonstop
      DEN 3:09 PM
      St. Louis - Denver | Sat, Nov 28 | United Airlines
      NZD 931
      11% off
      NZD 1,047 NZD 931
    • STL 7:03 PM
      2h 31m
      Nonstop
      DEN 8:34 PM
      St. Louis - Denver | Sun, Dec 20 | Frontier Airlines
      NZD 77
      47% off
      NZD 145 NZD 77
    • STL 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      St. Louis - Denver | Mon, Nov 9 | Normal Airline
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Displayed flight fares from St. Louis to Denver are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from St. Louis Lambert International Airport to Denver International Airport

What is the cheapest month for one-way flights from St. Louis Lambert International Airport to Denver International Airport?

Data is based on average one-way flight prices from St. Louis Lambert International Airport to Denver International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from St. Louis Lambert International Airport to Denver International Airport, the best time to buy is in March, with an average price of NZD 152. You’ll want to avoid October, when the average price can reach as high as NZD 838.

NZD 838
NZD 495
NZD 152
0
    Cheapest
  • NZD 498
    Nov
  • NZD 292
    Dec
  • NZD 285
    Jan
  • NZD 402
    Feb
  • NZD 152
    Mar
  • NZD 206
    Apr
  • NZD 348
    May
  • NZD 334
    Jun
  • NZD 253
    Jul
  • NZD 425
    Aug
  • NZD 831
    Sep
  • NZD 838
    Oct

What is the cheapest day of the week to fly from St. Louis Lambert International Airport to Denver International Airport?

The data is based on the past 12 months and shows the average ticket prices from St. Louis Lambert International Airport to Denver International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from St. Louis Lambert International Airport to Denver International Airport is Wednesday, with average fares typically lower than other days. You’ll want to avoid flying on Tuesday, as ticket prices are usually the highest that day.

NZD 535
NZD 364
NZD 192
NZD 21
    Cheapest
  • NZD 475
    Mon
  • NZD 535
    Tue
  • NZD 192
    Wed
  • NZD 309
    Thu
  • NZD 506
    Fri
  • NZD 274
    Sat
  • NZD 282
    Sun

Which airline offers the cheapest flights from St. Louis Lambert International Airport to Denver International Airport?

The cheapest airline flying from St. Louis Lambert International Airport to Denver International Airport is Frontier Airlines (from NZD 77) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From NZD 77
Delta Air Lines
From NZD 158
American Airlines
From NZD 175
United Airlines
From NZD 231

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What is the flight schedule from St. Louis Lambert International Airport to Denver International Airport?

Check the schedule for flights from St. Louis to Denver and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. F94567

    St. Louis Lambert International Airport

    6:30 PM

    STL

    2h 33m

    8:03 PM

    DEN

    S - T - T F -
    Search

  2. DL1571

    St. Louis Lambert International Airport

    10:14 AM

    STL

    1h 35m

    Nonstop

    12:49 PM

    ATL

    S M T W T F S
    Search

  3. DL530

    Hartsfield–Jackson Atlanta International Airport

    1:55 PM

    ATL

    3h 20m

    Nonstop

    3:15 PM

    DEN

    S M T W T F S

  4. DL1597

    St. Louis Lambert International Airport

    6:30 AM

    STL

    1h 36m

    Nonstop

    8:06 AM

    MSP

    S M T W T - -
    Search

  5. DL2927

    Minneapolis-Saint Paul International Airport

    10:50 AM

    MSP

    2h 13m

    Nonstop

    12:03 PM

    DEN

    S M T W T - -

  6. F93107

    St. Louis Lambert International Airport

    2:02 PM

    STL

    3h 36m

    Nonstop

    3:38 PM

    LAS

    S - - W T - S
    Search

  7. F94612

    Harry Reid Intl. Airport

    9:24 PM

    LAS

    2h

    Nonstop

    12:24 AM

    DEN

    S M T W T - S

  8. F94474

    St. Louis Lambert International Airport

    6:21 PM

    STL

    1h 58m

    Nonstop

    9:19 PM

    ATL

    S - T - T - -
    Search

  9. F91449

    Hartsfield–Jackson Atlanta International Airport

    6:55 AM

    ATL

    3h 39m

    Nonstop

    8:34 AM

    DEN

    S M T W T F S

  10. F92636

    St. Louis Lambert International Airport

    4:26 PM

    STL

    2h 24m

    Nonstop

    7:50 PM

    MCO

    S - - W T F S
    Search

  11. F91733

    Orlando Intl. Airport

    5:55 AM

    MCO

    4h 18m

    Nonstop

    8:13 AM

    DEN

    S M T W T F S

  12. F92636

    St. Louis Lambert International Airport

    4:26 PM

    STL

    2h 24m

    Nonstop

    7:50 PM

    MCO

    S - - W T F S
    Search

  13. F94919

    Orlando Intl. Airport

    1:19 PM

    MCO

    4h 16m

    Nonstop

    3:35 PM

    DEN

    S - - W T - S
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About St. Louis Lambert International Airport and Denver International Airport

Learn about St. Louis Lambert International Airport (STL) and Denver International Airport (DEN) — including location, terminals, transportation, and travel tips.

Flight distance 1,237.36 km
Cheapest one-way ticket price NZD 77
Cheapest return ticket price NZD 157

FAQs for St. Louis Lambert International Airport to Denver International Airport Flights

  • How long is the flight from St. Louis Lambert International Airport to Denver International Airport?

    St. Louis Lambert International Airport to Denver International Airport takes about 1 hour 59 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 5 daily flights from St. Louis Lambert International Airport (STL) to Denver International Airport (DEN).
  • The earliest flight from St. Louis Lambert International Airport to Denver International Airport departs at 05:55, and the last departs at 21:50, with about 25 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from St. Louis Lambert International Airport (STL) to Denver International Airport (DEN) is quite popular. Without considering departure times or holidays, tickets cost around NZD 278 in December, the most expensive month to book this route.
  • The earliest flight departs from St. Louis Lambert International Airport (STL) at 09:00 and arrives in Denver International Airport (DEN) at 10:30.
  • The latest flight departs from St. Louis Lambert International Airport (STL) at 20:40 and arrives in Denver International Airport (DEN) at 22:10.
  • Frontier Airlines is a very popular airline operating an average of 1898 flights per month.
  • One-way flights from St. Louis Lambert International Airport to Denver International Airport currently start from NZD 77, and round-trip fares start from NZD 157. The current lowest fare is a Frontier Airlines flight departing on Sun, Dec 20; prices may vary depending on availability.
  • Yes. United Airlines and Frontier Airlines operate direct flights from St. Louis Lambert International Airport to Denver International Airport, with an average flight time of 1 hour 57 minutes, and around 71 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from St. Louis Lambert International Airport to Denver International Airport is NZD 388. Prices may vary depending on the departure date, airline, and availability.
  • Frontier Airlines and Volaris are the most popular budget airlines flying from St. Louis Lambert International Airport to Denver International Airport, with one-way fares starting from NZD 77. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • St. Louis Lambert International Airport to Denver International Airport operates around 67 weekly flights, mainly by United Airlines and Frontier Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter St. Louis Lambert International Airport and Denver International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.